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St. Louis

$213+ Cheap flights from Dayton to St. Louis (DAY - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — STL
Aug 11 — Aug 181
Tue 8/11
Tue 8/18
1 adult, Economy
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Cheap flight deals from Dayton to St. Louis

Cheapest flights from Dayton to St. Louis
Explore the most affordable flight options available from Dayton to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 12, 2026.

This Delta deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:00 am
DAY
-
STL
1 stop6h 46m
Delta
Tue 8/185:23 pm
STL
-
DAY
1 stop5h 33m
Delta
Deal found 7/12$271
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:15 pm
DAY
-
STL
1 stop4h 11m
United Airlines
Fri 8/149:30 am
STL
-
DAY
1 stop7h 00m
United Airlines
Deal found 7/10$289
This Delta deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:17 pm
DAY
-
STL
1 stop5h 16m
Delta
Mon 8/175:23 pm
STL
-
DAY
1 stop5h 33m
Delta
Deal found 7/11$304
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:23 pm
DAY
-
STL
1 stop4h 50m
United Airlines
Sat 7/258:00 am
STL
-
DAY
1 stop4h 47m
United Airlines
Deal found 7/8$319
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:15 am
DAY
-
STL
1 stop5h 56m
United Airlines
Fri 8/145:30 pm
STL
-
DAY
1 stop5h 29m
United Airlines
Deal found 7/10$324
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:15 pm
DAY
-
STL
1 stop4h 11m
United Airlines
Mon 7/275:59 pm
STL
-
DAY
1 stop4h 50m
United Airlines
Deal found 7/12$339
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:32 am
DAY
-
STL
1 stop5h 11m
United Airlines
Tue 10/69:04 am
STL
-
DAY
1 stop3h 39m
United Airlines
Deal found 7/9$341
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:15 am
DAY
-
STL
1 stop5h 56m
United Airlines
Sat 8/810:20 am
STL
-
DAY
1 stop6h 10m
United Airlines
Deal found 7/8$350
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:15 pm
DAY
-
STL
1 stop4h 11m
United Airlines
Sun 7/197:20 am
STL
-
DAY
1 stop5h 27m
United Airlines
Deal found 7/9$359
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:23 pm
DAY
-
STL
1 stop6h 00m
United Airlines
Tue 7/146:00 am
STL
-
DAY
1 stop6h 47m
United Airlines
Deal found 7/8$361
This American Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:51 pm
DAY
-
STL
2 stops7h 25m
American Airlines
Fri 8/144:54 pm
STL
-
DAY
1 stop4h 42m
American Airlines
Deal found 7/10$371
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:39 am
DAY
-
STL
1 stop5h 07m
United Airlines
Mon 7/275:59 pm
STL
-
DAY
1 stop4h 50m
United Airlines
Deal found 7/8$389

Find flight deals from Dayton to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$213
(Kiwi.com)

Popular in

June

Cheapest in

November
Provider with most accurate pricing for Dayton-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-Lambert-St Louis flights.
Search Deals
From Dayton to Lambert-St Louis
Search Deals
One-way flight from Dayton to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($239 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease ($60 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 12, 2026.
Use the filters below to find and compare flights from Dayton to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 8/12

6:00 am-11:46 am

1 stop6h 46m

Lambert-St Louis

Tue 8/18

5:23 pm-11:56 pm

1 stop5h 33m

$271

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 8/7

6:15 pm-9:26 pm

1 stop4h 11m

Lambert-St Louis

Fri 8/14

9:30 am-5:30 pm

1 stop7h 00m

$289

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 8/9

7:15 am-12:11 pm

1 stop5h 56m

Lambert-St Louis

Sun 8/16

5:30 pm-11:59 pm

1 stop5h 29m

$289

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 8/8

6:15 pm-9:26 pm

1 stop4h 11m

Lambert-St Louis

Fri 8/14

5:30 pm-11:59 pm

1 stop5h 29m

$289

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 7/24

6:15 pm-9:26 pm

1 stop4h 11m

Lambert-St Louis

Mon 7/27

5:59 pm-11:49 pm

1 stop4h 50m

$339

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 10/3

11:32 am-3:43 pm

1 stop5h 11m

Lambert-St Louis

Tue 10/6

9:04 am-1:43 pm

1 stop3h 39m

$341

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 7/23

11:39 am-3:46 pm

1 stop5h 07m

Lambert-St Louis

Mon 7/27

5:59 pm-11:49 pm

1 stop4h 50m

$389
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 8/9

5:40 am-8:39 am

1 stop3h 59m

Lambert-St Louis

Fri 8/14

8:00 am-1:38 pm

1 stop4h 38m

$437

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 9/15

6:00 pm-10:00 pm

1 stop5h 00m

Lambert-St Louis

Fri 9/18

12:59 pm-9:46 am

2 stops19h 47m

$499

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 12/8

6:00 pm-9:13 pm

1 stop4h 13m

Lambert-St Louis

Sat 12/12

7:33 am-8:31 pm

1 stop11h 58m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Dayton to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dayton to St. Louis in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Dayton-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dayton-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dayton-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dayton-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dayton-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dayton to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Dayton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated July 12, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Dayton to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,980 reviews

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,980 reviews
United Airlines
7.4
Good
9,980 reviews

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
American Airlines
7.1
Good
11,804 reviews
United Airlines
7.4
Good
9,980 reviews

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

Find useful and relevant information for your journey from Dayton to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Dayton to St. Louis?

    For as low as $289, Delta can have you in St. Louis from Dayton in 4h 11m. Dayton and St. Louis are separated by a distance of 338 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Dayton to St. Louis round-trip?

    According to our current data, United Airlines ($228), and American Airlines ($238) offers the cheapest pricing from Dayton to St. Louis. These flights start at 47% lower than the current average price 3 months from now.

  • Can I find deals for flights from Dayton to St. Louis that include hotel bookings?

    Yes. In addition to deals on Dayton to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dayton to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dayton to St. Louis.

  • Can I find deals for business class flights from Dayton to St. Louis?

    Yes. Cheapflights offers flight deals from Dayton to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Dayton to St. Louis

Discover the top 2 airlines that operate flights from Dayton to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$338FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$238Average$308FlexibilityNo cancel feeOn-time71%

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